this metric screw generator will do the trick for screws between M2 and M16 with matching nuts and washers. Fastener hardware is pretty accessible, but one never knows when a 3D printed piece will ...

Fasteners cover everything from nails to rivets and bolts. A phone is held together with about 75 fasteners, a car with 3,500, and a jet plane with 1,500,000. The SR-71 Mach 3 spy plane is built ...